The car is based on the famous/infamous DeLorean DMC-12 - Famous for its appearance as a time machine in the Back To The Future movies, yet infamous because it was the only car the company produced - the DeLorean Motor Company went bankrupt quite quickly.

The manufacturer's name on the front of the DeGory'Un 2 is RUN: Add that to the real-world manufacturer (DMC) and one gets Run–D.M.C., the famous Hip-Hop group.

The first De Gory'un appeared in the Splat Pack, but Metal Mikey was the driver that time. Wonder what happened to him?

His name when spoken would obviously say "rusty". As a random note, Paper Mario also features a character named Russ T.